Weak pulse after Leptospirosis Vaccine in dogs

The FDA has received 63 reports of weak pulse in dogs after Leptospirosis Vaccine. That is 0.8% of all reports for this medicine, compared with 0.1% across reports for all dog medicines, so it is reported unusually often with this medicine.

63Reports

92%Marked serious

37%Recovered

25%Died or euthanised

Same dayTypical onset

How soon it started

Same day

39 75%

1–2 days

2 3.8%

3–7 days

3 5.8%

1–4 weeks

4 7.7%

Over a month

4 7.7%

How the animals did

Recovered

23 37%

Still unwell when reported

21 33%

Died

6 9.5%

Euthanised

10 16%

Not known

3 4.8%

Problems reported at the same time

47 75%

44 70%

35 56%

24 38%

20 32%

17 27%

17 27%

16 25%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: vaccine.

Mild, short-lived lethargy, soreness or a small lump at the injection site are the most commonly reported vaccine reactions.

Questions owners ask

Can Leptospirosis Vaccine cause weak pulse in dogs?: 63 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?: In half of the reports with dates, it started within the same day of the first dose.
What should I do?: Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Weak pulse with similar medicines

Weak pulse after Rabies Vaccine 88 reports · 0.9% of its reports
Weak pulse after Bordetella Vaccine 75 reports · 0.8% of its reports
Weak pulse after Distemper-parvo Vaccine 50 reports · 0.8% of its reports

All reported side effects of Leptospirosis Vaccine in dogs · Medicines most reported with weak pulse